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/**
* @file lv_log.c
*
*/
/*********************
* INCLUDES
*********************/
#include "lv_log.h"
#if LV_USE_LOG
#include "../misc/lv_types.h"
#include "../stdlib/lv_sprintf.h"
#include "../stdlib/lv_mem.h"
#include "../stdlib/lv_string.h"
#include "../tick/lv_tick.h"
#include "../core/lv_global.h"
#if LV_LOG_PRINTF
#include <stdio.h>
#endif
/*********************
* DEFINES
*********************/
#if LV_LOG_USE_TIMESTAMP
#define last_log_time LV_GLOBAL_DEFAULT()->log_last_log_time
#endif
#define custom_print_cb LV_GLOBAL_DEFAULT()->custom_log_print_cb
#if LV_LOG_USE_TIMESTAMP
#define LOG_TIMESTAMP_FMT "\t(%" LV_PRIu32 ".%03" LV_PRIu32 ", +%" LV_PRIu32 ")\t"
#define LOG_TIMESTAMP_EXPR t / 1000, t % 1000, t - last_log_time,
#else
#define LOG_TIMESTAMP_FMT
#define LOG_TIMESTAMP_EXPR
#endif
#if LV_LOG_USE_FILE_LINE
#define LOG_FILE_LINE_FMT " %s:%d"
#define LOG_FILE_LINE_EXPR , &file[p], line
#else
#define LOG_FILE_LINE_FMT
#define LOG_FILE_LINE_EXPR
#endif
/**********************
* TYPEDEFS
**********************/
/**********************
* STATIC PROTOTYPES
**********************/
/**********************
* STATIC VARIABLES
**********************/
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
void lv_log_register_print_cb(lv_log_print_g_cb_t print_cb)
{
custom_print_cb = print_cb;
}
void lv_log_add(lv_log_level_t level, const char * file, int line, const char * func, const char * format, ...)
{
if(level >= LV_LOG_LEVEL_NUM) return; /*Invalid level*/
if(level >= LV_LOG_LEVEL) {
va_list args;
va_start(args, format);
#if LV_LOG_USE_FILE_LINE
/*Use only the file name not the path*/
size_t p;
for(p = lv_strlen(file); p > 0; p--) {
if(file[p] == '/' || file[p] == '\\') {
p++; /*Skip the slash*/
break;
}
}
#else
LV_UNUSED(file);
LV_UNUSED(line);
#endif
#if LV_LOG_USE_TIMESTAMP
uint32_t t = lv_tick_get();
#endif
static const char * lvl_prefix[] = {"Trace", "Info", "Warn", "Error", "User"};
#if LV_LOG_PRINTF
printf("[%s]" LOG_TIMESTAMP_FMT " %s: ",
lvl_prefix[level], LOG_TIMESTAMP_EXPR func);
vprintf(format, args);
printf(LOG_FILE_LINE_FMT "\n" LOG_FILE_LINE_EXPR);
fflush(stdout);
#endif
if(custom_print_cb) {
char buf[512];
char msg[256];
lv_vsnprintf(msg, sizeof(msg), format, args);
lv_snprintf(buf, sizeof(buf), "[%s]" LOG_TIMESTAMP_FMT " %s: %s" LOG_FILE_LINE_FMT "\n",
lvl_prefix[level], LOG_TIMESTAMP_EXPR func, msg LOG_FILE_LINE_EXPR);
custom_print_cb(level, buf);
}
#if LV_LOG_USE_TIMESTAMP
last_log_time = t;
#endif
va_end(args);
}
}
void lv_log(const char * format, ...)
{
if(LV_LOG_LEVEL >= LV_LOG_LEVEL_NONE) return; /* disable log */
va_list args;
va_start(args, format);
#if LV_LOG_PRINTF
vprintf(format, args);
#else
if(custom_print_cb) {
char buf[512];
lv_vsnprintf(buf, sizeof(buf), format, args);
custom_print_cb(LV_LOG_LEVEL_USER, buf);
}
#endif
va_end(args);
}
/**********************
* STATIC FUNCTIONS
**********************/
#endif /*LV_USE_LOG*/
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